Movable work-gage for stereotype-trimming machines, &amp;c.



UNITED STATES 'PATENT OFFICE.

GEORGE F. READ AND FREDERICK GRAFTON LOUGEE, OF LONDON, ENGLAND, AS-

SIG-NORS, BY MESNE ASSIGNMENTS, TO R. HOE AND CO., OF NEW YORK, N. Y., A

CORPORATION OE NEW YORK.

MOVABLE WORK-GAGE FR STEREGTYPE-TRIMMING IVIACHINES, &C.

To all whom it may concern:

Be it known that we, GEORGE F. READ and FREDERICK GRAFTON Lotcnn,citizens of the United States, and residents of London, county ofMiddlesex, England, have invented certain new and useful Improvements inyMovable fork-Gages for Stereotype-Trimming Machines and the Like, fullydescribed and represented in the following speciiication and theaccompanying drawings, forming a part of the same.

This invention relates to certain improvements in devices forcontrolling the position of movable work gages, and more particularlythe work gages used for trimming stereotype plates, linotype slugs, andthe like.

The invention has for its object to produce an improved construction inwhich a movable work gage, which may be employed for presenting work toa cutter, as, for instance, a trimming wheel, may have its positionquickly and accurately determined.

lith this and other objects in view, the invention consists in certainconstruction and in certain parts, improvements and combinations, aswill be hereinafter fully described and then specifically pointed out.

Referring to the accompanying drawings-Figure 1 is a plan view of amovable work gage, provided with a position determining constructionembodying the invention. Fig. 2 is an end view of the construction shownin Fig. 1, certain parts being shown in section. Figs. 3, 4 and 5 aredetail views illustrating the operation of the construction.

Referring to the drawings, 1 indicates the work table of a trimming orother similar machine. Cooperating with the table is a movable gage 2which may operate to present the work to a suitable trimming mechanism,not shown. The table may be provided with a rib, as 3, and the gage maybe provided with an angle bracket, indicated at 4, which embraces therib, so that the rib guides the gage in its movement. A gib, as 5, maybe employed to prevent the gage from becoming detached from the rib.

Constructions embodying the invention will include an adjustable stop bywhich the position of the movable gage may be roughly determined. Vhilethis stop may be variously constructed and mounted, as l Specificationof Letters Patent.

Application filed January 16, 1909.

Patented Dec. 6, 1910.

Serial No. 472,587.

shown, it comprises a block 6 having a vertical perforation throughwhich passes a bolt 7 having a T-shaped head 8. As shown, the head S ofthis bolt works in an undercut slot 9 formed in the rib 3. The bolt,when the same is employed, may be provided with any suitable lockingmeans, such as a wing nut 10.

1n addition to the stop by which the rough adjustment of the work gageis determined, constructions embodying t-he invention will furtherinclude a suitable adjustable positioning device between the gage andthe stop. This positioning device may be varied in its specificconstruction and the manner of mounting and adjusting it. In theparticular construction shown, there is provided a head 11, this headbeing fast to a shaft 12 which is mounted in a tubular fitting 13 fastto the work gage, this tubular fitting, as shown, being part of thebracket 4. The fitting further supports a collar 14 removably secured tothe fitting in any suitable manner, as by screws 15. The rear end of thehead and the forward end of the collar are, in the particularconstruction illustrated, provided with inclined cam surfaces, and thesesurfaces are held in contact by a suitable spring 1G which bears againstthe collar 14 and against a collar 17 secured to the shaft. The shaftextends through the collar 14. For convenience in rotating the shaft, itmay be provided with a thumb wheel 18. It is apparent that when theshaft is rotated, the cam surfaces of the head and the collar will varythe position of the head, the shaft being caused to slide through thecollar. In this way, a very fine adjustment of the head may be attained.A suit able locking device may be provided for the shaft. In theconstruction shown, the wheel 18 is provided with notches 19 which areengaged by a suitable toothed spring 20, this spring being mounted onthe bracket 4.

Changes and variations may be made in the construction by which theinvention is carried into eect. The invention is not, therefore, to beconfined to the particular construction herein shown and described.

What we claim is 1. The combination with a movable work gage, of anadjustable stop which is disconnected from the gage, a positioningdevice betweenthe gage and the stop which operates to finally determinethe position of the gage, and means for adjusting the positioningdevice.

2. The combination with a movable work gage, of an adjustable stop whichis disconnected from the gage, a positioning device between the gage andthe stop and carried by the gage, and means for .adjusting thepositioning device.

3. The combination with a movable work gage, of an adjustable stop whichis disconnected from the gage, a positioning head arranged to Contactwith the stop and determine the position of the gage, and means foradjusting the positioning head.

4. The combination with a movable work gage, of an adjustable stop whichis disconnected from the gage, a positioning head, a shaft on which thehead is mounted, and means whereby the rotation of the shaft adjusts theposition of the head.

5. The combination with a movable work gage, of an adjustable stop whichis disconnected from the gage, a positioning head, a shaft on which thehead is mounted, said head and shaft being carried by the gage, andmeans also carried by the gage, whereby the rotation of the shaftdetermines the position of the head.

6. The combination with a movable work gage, of an adjustable stop, apositioning head having a cam surface, a shaft on which the head ismounted, said head and shaft being carried by the gage, a cam surfacealso carried by the gage, means for holding l ing provided with aninclined surface, a

spring for holding said inclined surfaces in contact, whereby therotation of the shaft will vary the position of the head, and lock'- ingmeans for the shaft.

In testimony whereof, we have hereunto set our hands in the presence oftwo subscribing witnesses.

GEoRGE F- READ. FRED. GRAFTON LoUGEE.

Witnesses H. D. JAMESON, F. L. RAND.

